JP Enterprises – 9mm AR Silent Captured Spring - Standard - GEN 2

The 9mm SCS requires an open channel in your 9mm bolt assembly for the guide rod to pass during fire. For most bolts, this will require you to remove the pinned-in central mass. To function with the SCS, this central mass must be removable, and the bolt must still be at its full length without it.

The JPSCS is not compatible with any blowback system using a solid (weighted) carrier.